Expedited Site Assessment Tools For Underground Storage Tank Sites: A Guide For Regulators

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The expedited site assessment (ESA) process is a framework for rapidly characterizing UST site conditions for corrective action decisions. This concept has been described with other names including: accelerated site characterization, rapid site characterization, and expedited site investigation.

NOTE: QA documents referred to in some of the following chapters may be outdated. Visit The EPA Quality System web site for the latest version of EPA's QA documents.